Machine for making prints



Sept. 4, G. M. DYE MACHINE FOR MAKING PRINTS original'Filec l Nov. 7,1938 5 Sheets-Sheet l Sept. 4, 1945. DYE 2,384,019

I MACHINE FOR MAKING PRINTS Original Filed Nov. 7, 1938 s Sheets-Sheet 2Sept 4, 1945. G. M. DYE

MACHINE FOR MAKING PRINT$ 5 Sheets-Sheet 3- Original Filed Nov. 7, 1938Sept. 4, 1945. s. M. DYE

MACHINE FOR MAKING PRINTS Original Filed Nov. 7, 1938 5 SheetS -Sheet 4Sept. 4, 1945. G. M. DYE 2,384,019

MACHINE FOR MAKING PRINTS I Original Filed Nov. 7, 1938 5 Sheets-Sheet 53% fina /727:0:

Patented Sept. 4, 1945 UNITED STATES PATENT OFFICE MACHINE FOR MAKINGPRINTS Glen M. Dye, Minneapolis, Minn.

Original application November 7, 1938, Serial No.

This invention relates to a projection printer for making photographicprints or to a machine for making oversized prints. The machine isdesigned to make projection prints from negatives of different sizes,which prints will have a size range comprising a very large proportionof such projection prints or enlargements now commercially made.

It is an object of this invention to provide a motor driven projectionprinter which is con structed and arranged for rapid, convenient andefficient operation.

It is a further object of the invention to provide a projection printerincluding a negative holder of eflicient construction and one that canbe quickly and conveniently operated.

It is another object of the invention to provide a projection printerincluding a revoluble member having a plurality of different sizedopenings therethrough and forming a combined mask and negative holder.

Divided and this application July 10, 1942, Serial No. 450,396

Claims.

These and other objects and advantages of the invention will be fullyset forth in the following description made in connection with theaccompanying drawings in which like reference char acters refer tosimilar parts throughout the several views and in which-- I Fig. 1 is aview in front elevation of the machine;

Fig. 2 is a view partly in side elevation as seen from the right of Fig.1 and partly in vertical section taken through the lamp box;

Fig. 3 is a horizontal section taken just above the negative holdingmeans;

Fig. 4 is a diagrammatic view illustrating the relation between theopenings in the negative holder, the lens and the print;

Fig. 5 is a central vertical longitudinal section through the lamp boxand negative holder;

Fig. 6 is a vertical section taken through the center of the negativeholder in a plane at right angles to that of Fig. 5; and

Fig. '7 is a view partly in rear elevation and partly in verticalsection taken through the negative holder and lamp box.

Referring to the drawings, a machine is shown comprising a frameincluding legs 50 shown as four in number. These may be of any suitableconstruction and are illustrated as of angle shape in cross sectiontapering toward their lower ends, with the inside of their anglesdisposed inwardly and secured at their upper ends by screws 5| to asubstantially horizontal plate or table 52 having a depending flange 52aextending thereabout with the inner side of which legs 50 engage. A

bar 53 of angular cross section extends between legs 50 at one sideadjacent their bottoms.

A lamp box is provided, the top of which is formed by a plate or casting522) which is secured in and in effect forms part of table top 52. Saidplate 52b has a flange 520 at its forward end having therein a slot oropening 52d which is continued as a slot through the bottom of plate 52bfor some distance. Said plate 52b has a raised portion 52c therein and atrough 52f is formed at the front portion of the plate 521) betweenfiange 52c and portion 52c. ,Portion 52c is apertured and has adepending cylindrical flange 52g extending downwardly therefrom. Anannular flange 52h is formed in portion 52c and forms the support for alens 93. Said lens may be positioned on a resilient annular strip 94shown as circular in cross section. Said lens 93 is held in position bya plate 95 which may be made of any suitable material and in practicehas been made of Masonite. Plate 95 is secured to portion 52c bycountersunk screws 95b. A small bracket 96 is secured to the undersideof plate 52b at its forward portion by small screws 96a and has a lipextending downwardly and inwardly substantially at a 45 degree angle. Afront plate 91 is provided for the lamp box, the same having a latch 91apivoted thereto by a pivot member 91b, said member 91a being adapted tobe moved over the inner side of bracket 96 to hold plate 91 in closedposition. Plate 91 has small brackets 910 secured thereto the same beingoffset to form lips directed toward each other and to extend over amirror 98 which is thus secured to the inner side of plate 91. Plate 91is hinged by a hinge I00 to the vertical stationary front side platelllla of the lamp box casing llll. Side plate Illla has secured theretoadjacent its bottom a resilient cushion block I091; against which plate91 will engage should it be dropped. Casing Illl has a bottom plate Hllbhaving an aperture I0 Ic therethrough, one function of which is to admitcool air into the lamp box. The lamp box also comprises side plates mmwhich engage the outer side of flanges 522 formed on plate 52b and towhich they are secured. Brackets I02 illustrated as formed from anglemembers are secured to side plates lid and extend across the lamp boxadjacent the bottom thereof. Headed screws I03 extend through the lowerpart of bracket I02, being held therein by nuts I04, said bolts alsoextending through a plate I05 and being equipped with wing or thumb nutsl03a beneath plate I05, said nuts thus holding said plate in position.Plate I05 is centrally apertured and forms a seat for a ball memberififia formed on a rod I06 which extends through the bottom of the lampbox through opening IOIc and carries at its upper end the lamp socketI000 in which the printing lamp I! is secured. Rod I has a handle lflfibat its lower end. A stationary contact member I08a forming one part ofthe printing lamp switch I08 is carried on a small angle bracket I09secured to one side plate Eilib. The movable contact I08b of switch I08is carried on a pin I I0 slidable vertically in a slot in side plateIOIb, plates III of insulating material being disposed at the inner andouter sides of side plate IOIb and moving with and forming in efiectguide members for pin IIO. Pin I I0 extends through a verticallyvmovable bar H2, said pin having a head formed thereon at the outer sideof said bar and having a small cotter pin I I3 extending therethrough atthe inner side of inner plate II. downwardly and is connected to amechanism for controlling contact I081). A pilot lamp I 01a is alsoprovided in the bottom of lamp box casing :52}. A SeCond. and condensinglens 93a is provided. disposed at right angles to lens 93 and carried inan angle bracket I0 Is and secured therein by headed and nutted boltsIIlId'. Spring washers IGIJ; are disposed under the nuts on bolts i"'and clamping members 931) which may be of resilient material aredisposed under the heads of.- the nuts on bolts IOId and engage lens53a. Itwill be seen from Fig. 5 that lenses 93 and. 8.311 are fiat onone side and have convex surfacesat their other side, said convexsurfaces being. directed toward mirror 98. A flat casing IOIh isdisposed below plate. 521) above lamp I01, the same containinginsulating material IOIi. Said parts areprovided to prevent the heatfrom lamp. I01 unduly heating plate 52b thereabove. An opening I019leadsfrom the upper art of the lamp bOX. and. communicates, with avertical flue Hill; which. extends upwardly to the top of the machineWhile said flue may be of any form, in the embodiment of the inventionillustrated it is. shown. as rectangular in crosssection.

The member, 9.5a has an opening therein through which the light forprinting passes and the topsurfaoe of member Biformsthe supportingsurace .ior the negatives such as. films which are to be, printed. Anegative holding means is provided comprising a rotatable plate orturret H5. Plate II,5 isrotatably mounted on a pin IIfi secured inmember. 52b and is arranged to be raised by a, sleeve III disposedtherebeneath and slidableon pin I -i6-, A rest for, plate II5 isprovidedcomprising a headed screw I I 5d adiustably threaded; intomember 52b and. adapted to be held; in adjusted position, by a lock nutII5b. Sleeve H1 is. adapted to be lifted by a lever II8 having end.portions disposed in opposite sides thereof, said lever having parallelspaced portions joined at their endsremote from sleeve I I I. Lever IIS, is. arranged to tilt about a fulcrum member I;!9,carri e d. on member52b. An operating means for plate H5 is provided and comprisesalgneeeoperated lever I having a hori- Zontal portion. I20a journaled inbearings I2I secured to the. underside of table 52, said portion beingbent at its. end substantially at a right angle, and disposed to overliethe closedor outer end of; lever H 8:.- Lever I20. also has an outerdownwardly extending portion I20b formed with spaced parallel sides,which portion is contacted bytheknee of the. operator. While lever I20may be of any suitablev form, in the.v embodiment of Bar II2 extends theinvention illustrated it is shown as made from a round rod. It will beseen that by pressing laterally on portion I201) plate II5 will belifted and it can then be easily rotated about pin 5 II 6, Plate H5 hasquite a number of circumferentially spaced openings II5a therethroughadjacent its circumference, which openings are of different size andshapes. Openings II5a are thus adapted to determine different areas tobe printed. Flat spring members II5c are secured at either side of oneof the openings H511 and press on plate IIE at the sides of saidopening, springs being adapted to hold certain small films or to engagea special holding means for a very small film such as a strip film froma motion picture. camera. Plate H5 is adapted to be held or locked inposition with one of the openir s Ida over the light opening 95a and forthis purpose said plate is provided with a plurality of holes H5111,there being one for each opening I.-5fi,. When the respective openingIIEia is. in proper position relative to the light opening thecorresponding hole I I5d receives a pin I lie which rdsircm member 5212.When the plate II5 d for rotation itis lifted clear of pin II5c. 1gi22-having a substantially horizontal top 522:0, spaced a short distanceabove table 52 extends over holder I IS, the same having outwardly and.downwardly sloping sides. Said casing I22 is open at its. front for theinsertion and removal of the negatives and also has its top ofisetupwardly at said front. The open. front portion of casing 122- isclosedduring the printing operation by a flexible. opaque curtain I23. CurtainIE3 is adapted to. be raised by oscillation of a crank rod I'M having anoffset curtain-engaging central portion [2.4a and end portions I241).End portions. IMb. are journaled in small bearings supported on theframe. Crank rod I24 is oscillated by a pulley I25 connected by asuitable belt to pulley I26.

Bar 55 shown as angular inv cr-Oss section, is a-lso sezured toandextends [between the rear legs 50. adiacent their bottoms. This. barsupports a motor used to drive the moving parts of the machine, the samebeing enclosed in a casing 56d. A conductor 276 isshown as leading tosaid motor. A shaft I9. is operated by suitable connections from themotor and extends to and drives a. pulley member I23; A shaft I21isconnected to shaft I9; and. operated therefrom.

Two rear rods I30. and. two forward rods Ia and. I301) are secured. attheir lower ends in top I22a and extend vertically too three sided yokeI3 Whileyoke I.3I could be variously made, in the embodiment of; theinvention illustrated it is shown as in the form ofa. channel with itsopen side directed. downwardly. Rods. or posts I30, I386; and I:30d.forn 1 guides on which are slidable two assemblies, oneof. which carriesthe projecting lens and. the. other and upper of which carries the papersupporting and handling mechanism. The first of said assembliesinclude aplate or lens carriage I32 having a rather long portion I32a arrangedfor vertical movement. Carriage I32, carries the lens unit I33whichcompriscs the usual iris or diaphragm for exposing more or less ofsaid lens to decrease or diminish an opening close to saidlens. Thisiris. is arranged to be operated by an. oscillating arm. I34. Plate. I32has secured: thereto and depending therefrom spaced plates. I362connected by a similar rear plat I37. Plates I36; and I31 move close tothe sides. of an openingv in top plate I220. and prevent the. passage oflight outwardly from casing I22 when lens unit I33 moves upwardly. Alsoprovable with the lens carriage at the front and above plates I36 andI31 is a plate I38 having a forwardly curved upper end which extendsover Plates a plate I39 fixed to the top plate I22a. I38 and I39 preventthe passage of light upwardly.

The other of said two assemblies constitutes a paper carriage andcomprises a member I40 having a sleeve portion slidable on forward rodIa and small rollers engaging a flat bar I30d secured to bar I30a.Member I at one'side has secured thereto a pulley I42 rotatableon aheaded stud secured in member I40. A cord or cable I44 is secured at oneend to a lug I3I a projecting from yoke HI and extends downwardly aroundpulley I42 and then upwardly and over a pulley I45 rotatable on a headedstud I46 secured in yoke I3I. From pulley I45 cable I44 extendsdownwardly and is connected to a rather long cylindrical counterweightI41 (see Fig. 2) which is movable in a tube I48 disposed at one side ofthe machine and secured in table 52. Member I40 has projecting forwardlytherefrom a bail handle I56. Rod IBM has arack I30e formed on andsecured to its outer side with which meshes a small pinion carried on ashaft journaled in member I40, which shaft has secured thereto at thefront of member I40 a small hand wheel I53. It will be apparent thatmember I40 and the parts supported thereon may be raised and lowered byhandle I5% and that accurate adjustment may be had by turning hand wheelI53. Movement of the paper carriage is quite free and easy due tocounterweight I41.

The lens carriage and paper carriage-are interconnected and arranged fordetermined relation in movement so that the image projected by the lenswill always be sharply focused on the paper by lens unit I33. To thisend member I32 has a pin I54 projecting at its rear and this pin isdisposed in an arcuate slot 155a formed adjacent the end of one arm I55bof a bell crank lever I55 pivoted on a pivot I56 supported in a smallbracket I51 secured to top plate I22a. Lever I55 has its other arm i550extending upwardly and said arm has a pin I58 secured therein, which pinis disposed in and arranged to move in a cam slot I590. formed in a camplate I59 secured to a paper carriage I40.

The paper carriage I40 has secured therein by plate brackets I (H havingdove-tailed grooves therein, a plate glass portion I62 which hasbevelled sides fitting in said grooves. The shaft I21 already mentionedextends upwardly to and has a reduced portion journaled in a stationarybearing. Above said bearing shaft I21 has secured thereto a bevelledgear I63 with which meshes another bevelled gear I64. Gear I64 issecured to a shaft I65 extending horizontally and journaled in suitablebearings.

A mask carrier is provided as well as a platen. structure including aplaten carrier I12 suitable connected to a shaft I65 to be oscillatedthereby. Different positions of member I12 are shown in Fig. 2. A printguiding member 2| 8 extends across the rear of the machine and a printguiding plate 2I9 is provided adapted to guide the discharged print Pinto any suitable receptacle such as a tray 220 shown in Fig. 2. Anumbering device 208 is provided suitably operated to print anidentifying number or character on each print. An index member 223 isprovided suitably mounted upon a rod 22I between members 222, the samehaving characters designatingthe .28 8 having rounded forward corners.

openings I I5a, said characters being disposed in vertical rows andappropriately spaced. Said index member or column 233 also has arrangedcircumferentially thereon at top and bottom the identifying charactersof the masks provided for the machine. A bracket 224 depends from oneofthe brackets I6I which holds member I62 and has secured thereto asmall casing 225 having a pointer 225a-at one side adapted to move alongand cooperate with the index member 223. In

practice the pointer will be horizontally aligned with one of theletters on the column at the front of said index member. There is a lampin casing 225 and aconductor 213 is shown therefor.

An exposure guide or meter is provided comprising a casing 230, the samebeing secured to the central part of paper carriage I46. The front ofcasing 230 on its upper portion is provided with a plurality of holes oropenings 234a and these will have extending thereover a diaphram .orsheet of material of such nature so thatv light will show through holes234a in different degrees of density. These openings may be designatedby certain characters and a pointer member is adapted in the operationof the machine to move along said row of openings. Said exposure guidealso includes a mirror 233 in which the negative is reflected so as tobe viewed by the operator. A lamp is used in casing 230 to vary theintensity of illumination and thus the degree of density of the openings234a anda resistance is provided in th circuit of the lamp and a pointer246a moves along a scale at the bottom of casing 236 to indicate thedegree of resistance cut into the circuit.

The machine has a series of shelves 200 illustrated as three in numberextending horizontally at one side thereof beneath table 52 andsupported upon vertical bars 28I secured at their upper ends to table 52and a channel member 282 extending across the same. Drawers 283 areadapted to be disposed on the shelves 280, the

same having handles 283a on their front ends. A shelf 284 is formed atthe right side of the machine, the same sloping downwardly and forwardlyat an angle of substantially 45 degrees and having an upwardly andforwardly,extending portion 284a at its lower end. The shelf 284 isadapted to support one of the drawers 283, which drawers as shown inFig. 1, are provided with a cover 28 3c, Forwardly of the foremostpartition 286 the machine is provided With a plurality of compartments281 formed by partitions Drawers 283 have compartments 283b therein.

This application is a division of applicants copending application S. N.239,269, filed November '1, 1938, now Patent Number 2,291,613, issuedAugust 4, 1942, on Projection printer. The matter claimed in the presentapplication relates principally to the means for holding the negativeand parts connected therewith. Other parts of the machine shown in thedrawings are generally described but form no part of the claimedinvention. A full description of the machine appears in applicantspreviously filed case to which reference is above made.

In operating the machine the switch for the motor in casing 56d will beclosed and this starts the motor and lights a lamp in casing 225 for theindex member 223 and also lights the pilot light I01a. The function ofthe pilot light is to furnish sufficient light for the operator to placethe negative over the light opening a. It will be understood that themachine will be operated in a dark room. The operator now takes thenegative to be printed and selects the proper mask to give the desiredenlargement or the desired size of print. It will be understood that atthis time the platen is in its rearward position shown in dotted linesin Fig. 2. The mask is quickly placed in position and the operator nowpresses laterally on the downturned portion l-20b of lever I20, thuslifting the negative holder 1 I5. Said holder is thus free for rotationand is quickly turned to bring the desired opening II5a in forwardposition. A negative is placed beneath the opening -I I5a and lever 42!]is released. Plate l I 5 then descends holding the negative firmly onthe top of plate 95. The operator grasps handle I50 and moves the papercarriage and pointer 225a to bring the pointer opposite the letterdesignating the opening I I5a beneath which the negative has beenplaced. As previously described, movement of the paper carriage I50through the connection thereof with the lens carriage also moves thelens carriage. The interconnection between the paper carriage I40 andthe lens carriage I32 is so designed that the lens unit 133 is alwaysbrought to proper position so that the projected imag will fill the maskopening when th pointer 225a. registered with the proper letter on theindex guide 2 23. The paper is now placed in position and the machin isoperated through a suitable clutch to go through its cycle. The platenholder H2 is now swung down to paper holding position. At the same timthe printing member 208 is operated and an identifying character isprinted on the paper. As the platen reaches its position on the paperplate switch "I8 is closed and this lights the printing lamp Iil'l.Shaft I2! is rotated, rotating pulley block I26, and this rotates pulleyI 25, thus moving crank rod I24 and lowering curtain I23 to its closedposition. Curtain I23 is closed before the printing lamp is lighted.When the printing lamp is lighted the image as stated, is sharplyfocused on the printing paper. The image of the negative is reflected inmirror 233 which as shown in Fig. '1, is in view of the operator. Theoperator glances at said image and picks out.a portion thereof whichwill determine the printing period. Every negative has certaincontrasting par-ts therein and an experienced operator in looking at thenegative, can and does pick out some portion thereof which willdetermine the density of the print to be made or the time of exposure.Having selected the said portion of the image the operator then selectsthe opening 234a which most nearly corresponds to th density of theselected portion. The pointer shown in Fig. 1 travels along saidopenings and when it reaches the selected opening the opera-- tor stepson the control pedal of the machine and bring the printing period to anend. The machine then passes through a cycle which operates shaft I2!and shaft I6 5 so that the mask carrier and platen are raised togetherlifting the print and discharging it rearwardly. The print slides fromthe platen against panel 2"! and then drops onto deflecting plate 219and is guided into tray 22!]. The operation is quite rapid and themaking of print is only a matter of seconds. The work order envelopescontaining the films for each order can conveniently be placed in thecompartments 281-. Th drawers 283 contain the print paper and paper ofdifferent speeds will be contained in compartments 2831). The drawerscan be conveniently positioned on the shelf 28 so that the paper iswithin easy reach of the operator. Another important feature of themachine is the trough formed in the rear of flange 52c. As th work isfinished on each negative the operator can merely push the negativesforward- -Iy so that they drop into said trough. When the particularorder is finished the operator can reach into the trough with the thumband finger through the opening 526 and grasp th pile of negativesbetween the thumb and finger so that they can be easily and quicklyremoved as a group.

From the above description it will be seen that I have provided a veryefficient and compact machine by means of which enlargements oroversized prints can be made with great ease and speed. The member H5 ineffect forms a combined mask for the negative and negative holder. Theopening which it is desired to use can be very quickly brought intoposition over the lamp opening, the negative can be quickly placed inposition and plate H5 then lowered to hold the negative. The member I I5is simple in construction and can be easily and quickly operated. Themachine has been amply demonstrated in actual practice and found to bevery successful and eflicient.

It will, of course, be understood that various changes may be made inthe form, details, arrangement and proportions of the parts, withoutdeparting from the scope of applicants invention, which generallystated, consists in a device capable of carrying out the objects aboveset forth, in the parts and combinations of parts disclosed and definedin the appended claims.

What is claimed is:

l. A photographic printing device having in combination, a supporthaving a surface for supporting a negative and having an openingtherethrough for the passage of light for printing from said negative, apin upstanding from said member, a circular plate revoluble about saidpin and having a plurality of circumferentially spaced openings ofdififerent sizes therethrough, any one of which may be brought intoregister with said first mentioned opening, said plate having aplurality of circumferentially spaced holes therethrough, one for eachof said openings therein, a pin adapted to pass through any one of saidholes to hold said plate in position and means under the control of theoperator for raising said plate to place a negative thereunder andlowering the same to hold said negative in posi' 'tion.

2. A machine for making photographic prints having in combination, amember having a negative supporting surface with an openingtheret-hrough for the passage of light, a second member having aplurality of openings therethrough of different sizes and movable tobring any one of said openings into register with said first mentionedopening, a movable paper carriage, a movable lens carriage, meansconnecting said carriages to move in synehronism, an index member havingspaced characters thereon corresponding to said last mentioned openings,and a member movable with said carriages cooperatwith said index memberand movable therealong to properly position said carriages for theparticular opening used in said second member so that the proper sizedimage is projected on the printing paper by said lens.

3. A photographic printing device having in combination, a table havinga surface adapted to support negatives of various sizes such as filmsand having an opening therethrough for the passage of light, a platerevoluble about an axis substantially perpendicular to said surfacehaving a lower surface parallel to said surface and having a pluralityof circumferentially spaced openings of different sizes therethrough,said plate being of a diameter so that said openings are adapted to bebrought respectively over said first mentioned opening, and means forraising said plate for rotation and for permitting a negative to beplaced on said table beneath said plate and for lowering said plate forholding said negative between the same and said table.

4. A photographic printing device having in combination, a table havinga substantially horizontal surface for supporting negatives of varioussizes and having an opening therethrough for the passage of light, overwhich opening a negative may be positioned, a plate having a lower fiatsubstantially horizontal surface disposed over said table and pivotedfor rotation about a vertical axis, said plate having a series ofcircumferentially spaced apertures of different dimensions therethroughand being of a diameter to extend over said opening, said aperturesbeing adapted to be positioned respectively over said opening, means forholding said plate in position with one of said apertures over andalined with said opening in said table, and means forv raising saidplate to rotate the same and to permit a negative to be placedthereunder and for lowering said plate on said table to hold saidnegative clamped against said table.

5. A photographic printing device having in combination, a supporthaving a surface for supporting negatives of various sizes and having anopening therethrough for the passage of light for printing of saidnegatives, a member comprising a combined negative holder and maskhaving a plurality of openings of different sizes therethrough, any oneof which may be brought into position with its central axis insubstantial alinement with the central axis of said opening, said memberalso having a lower surface parallel to said first mentioned surface,means for raising said member to permit a negative to be placed on saidfirst mentioned surface therebeneath and for lowering the same onto saidnegative to clamp said negative between the same and said firstmentioned surface to hold said negative in position during the printingoperation.

6. The structure set forth in claim 5, said last mentioned meansincluding a lever having a portion adapted to be actuated by theoperator.

7. The structure set forth in claim 5, said last mentioned meanscomprising a lever having a portion operatively connected to said holderand a depending portion adapted to be engaged and swung by the knee ofthe operator.

8. A photographic printing device having in combination, a supporthaving a surface for supporting negatives of various sizes and having anopening therethrough for the passage of light for printing'from saidnegative, a combined negative holder and mask member comprising a fiatrigid plate having a lower surface parallel to said surface and having aplurality of circumferentially spaced apertures of different sizestherethrough, said member being rotatable to bring any one of saidspaced apertures over and into alinement centrally with said opening,means for raising said member to permit a negative to be placed on saidfirst mentioned surface therebeneath and for lowering said member ontosaid negative to hold the same against said first mentioned surfaceduring the printing operation.

9. A projection photographic printing device having in combination, anegative receiving chamber arranged to be darkened during the printingoperation, a support having a substantially horizontal surface forsupporting negatives of various sizes in said chamber and having anopening therethrough for the passage of light for printing, a printdisposed over said chamber, a member revoluble about a central axis andhaving a plurality of different sized circumferentially spaced aperturestherethrough disposed about said axis, said member having a lowersubstan tially horizontal surface and being revoluble to bring any oneof said spaced apertures into alinement centrally with said opening,means for holding said member in position and respective aperture insuch alinement, means for lifting said member to permit a negative to beplaced on said first mentioned surface therebeneath and for loweringsaid member onto said negative to hold the same between said member andfirst mentioned surface during the printing operation.

10. A photographic printing device having in combination, a supporthaving a surface for supporting negatives of various sizes and having anaperture therethrough for the passage of light for printing from saidnegative, a rigid member forming a combined negative holder and maskhaving a plurality of openings of different sizes therethrough andmovable so that any one of said openings may be brought over and intoalinement centrally with said aperture and having a surfacesubstantially parallel to said surface, and means for causing relativemovement between said support and member to separate the same to permita negative to be placed between said surfaces and to hold said negativein position clamped between said surfaces.

GLEN M. DYE.

